Understand the problem!
Reforest devasted land; Australia alone ~20 Gt/yr.
Establish local food self sufficiency; cut food dependencies.
Restore aquat and terr biodiversity; re-establish ecological stability.
Set Up "Compassion Fund" For Climate Change Victims; prevent large scale damage by CC refugee movement.
Establish nuclear energy sufficiency with responsible waste management; make energy cheap and plentiful.
Legislate constraint at consumer level; stop addiction.